/**
 * Copyright 2011 FeedDreamwork SIG
 * 
 * Licensed under the Apache License, Version 2.0 (the "License"); you may not
 * use this file except in compliance with the License. You may obtain a copy of
 * the License at
 * 
 * http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
 * License for the specific language governing permissions and limitations under
 * the License.
 */

package org.feeddreamwork;

import javax.jdo.*;

public abstract class RepositoryBase {
	private static final PersistenceManagerFactory pmFactory = JDOHelper
			.getPersistenceManagerFactory("transactions-optional");
	protected final PersistenceManager persistenceManager = pmFactory
			.getPersistenceManager();

	public void saveObject(Object data) {
		persistenceManager.makePersistent(data);
	}

	public void deleteObject(Object data) {
		persistenceManager.deletePersistent(data);
	}

	public void close() {
		persistenceManager.close();
	}

	protected Object tryGetObjectById(Class<?> cls, Object key) {
		try {
			return persistenceManager.getObjectById(cls, key);
		} catch (JDOObjectNotFoundException e) {
			return null;
		}
	}
}
